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Phenotype wild Black body Black body wild wild Black body Black body wild Brown wild Brown Brown Phenotype wild eyes wild Brown eyes eyes eyes wild Vestigial Vestigial Phenotype Vestigial wings Vestigial wings wild wings wild wild wings wild BI Br V BI ++ + Br + +++ ++ V BI Br + BI + V + Br V Total 328 176 169 124 102 57 110 132 1010

Phenotype wild Black body Black body wild wild Black body Black body wild Brown wild Brown Brown Phenotype wild eyes wild Brown eyes eyes eyes wild Vestigial Vestigial Phenotype Vestigial wings Vestigial wings wild wings wild wild wings wild BI Br V BI ++ + Br + +++ ++ V BI Br + BI + V + Br V Total 328 176 169 124 102 57 110 132 1010

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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How do I Deduce the correct gene Order?
Phenotype wild Black body Black body wild wild Black body Black body wild Brown eyes Brown Brown Phenotype wild wild eyes wild Brown eyes eyes wild Vestigial wings Vestigial Phenotype Vestigial wings Vestigial wings wild wild wild wings wild +++ BI Br V BI ++ + Br + ++ V BI Br + BI + V + Br V Total 328 176 169 124 102 57 110 132 1010
Transcribed Image Text:Phenotype wild Black body Black body wild wild Black body Black body wild Brown eyes Brown Brown Phenotype wild wild eyes wild Brown eyes eyes wild Vestigial wings Vestigial Phenotype Vestigial wings Vestigial wings wild wild wild wings wild +++ BI Br V BI ++ + Br + ++ V BI Br + BI + V + Br V Total 328 176 169 124 102 57 110 132 1010
Deduce the correct gene order, knowing that in the dco progeny the alleles of the two "outside" genes are still together as they were in the parentals, whereas the alleles of the middle gene have "switched" to the other sister chromatid. The A & C and a & c alleles are still together in the dco progeny, whereas t alleles of the B/c alleles have switched position.Therefore, the B gene must be in the middle. It is helpful now to re-write all the progeny genotypes showing the correct order if they aren't already written that way. In this example, B is in the middle, however if A was in the middle we could re-write: One of the parental progeny as--BAC/bac or CAB/cab One of the dco progeny as bAC/bac or CAb/cab Keeping in mind we do not know which genes are on the ends in this analysis.
Transcribed Image Text:Deduce the correct gene order, knowing that in the dco progeny the alleles of the two "outside" genes are still together as they were in the parentals, whereas the alleles of the middle gene have "switched" to the other sister chromatid. The A & C and a & c alleles are still together in the dco progeny, whereas t alleles of the B/c alleles have switched position.Therefore, the B gene must be in the middle. It is helpful now to re-write all the progeny genotypes showing the correct order if they aren't already written that way. In this example, B is in the middle, however if A was in the middle we could re-write: One of the parental progeny as--BAC/bac or CAB/cab One of the dco progeny as bAC/bac or CAb/cab Keeping in mind we do not know which genes are on the ends in this analysis.
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